>the effect of poor sleep seems to be MUCH worse for me than other people. I go from extreme motor coordination to dropping cups in a span of 3 days of poor sleep.

Are you sleeping enough? When I was getting too little sleep, averaging 5.5 hours per night, this described me well. A single sleep interruption could make me lose most of a day of work. I'm sleeping better and longer now, and it seems I'm more able to tolerate small interruptions.